a bit boggy

[bhw33191]

My car seems to bog when the throttle is just barely depressed. Its never actually stalled on me due to skillful footwork but in order to make sure it doesn't bog wen pulling away at a light or whatever i have to sort of punch the gas. It does this even when the engine is warm. Its pretty bad when the engine is cold too but i just figured its because its carbureted and thats just how they are? But i'm not really sure because its my first (carbureted) car so i wouldn't really know.

One thing to note is that i had my transmission rebuilt a few months ago. I read somewhere that the engine may "seem" to bog when it is actually something wrong with the transmission that causes this? So maybe i need to bring it back and have the trans looked at?

Could loss of trans fluid cause this too? I remember seeing a few streaks of fluid on the trans oil pan and i meant to bring the car back to the shop to have the whole checked up on after it was broken in, but never got around to that. I havent seen any puddles in the driveway so thats probably not it but i'm just giving you guys all the info i got.

[silicon212]

If it seems to have a 'flat spot' in it at a certain RPM, or with a certain throttle percentage at a certain speed, this could be an indication of a flattening cam lobe. Check the oil on your car, if it has a metallic paint appearance under sunlight, this could be the issue.

[bhw33191]

Originally Posted by silicon212

If it seems to have a 'flat spot' in it at a certain RPM, or with a certain throttle percentage at a certain speed, this could be an indication of a flattening cam lobe. Check the oil on your car, if it has a metallic paint appearance under sunlight, this could be the issue.

Today i flipped my air cleaner cover back to how it should be (i had it upside down because it sounds better when the secondaries open :-D). So it MIGHT just be a coincidence but i don't think it bogs (or at least as much). I don't wanna jump to conclusions but i would assume it has something to do with back pressure/ my custom exhaust/ something of that relation?

I'll have to do some more testing to make sure its not just the 20 degree temp difference between yesterday and today.

[j cAT]

Originally Posted by bhw33191

Today i flipped my air cleaner cover back to how it should be (i had it upside down because it sounds better when the secondaries open :-D). So it MIGHT just be a coincidence but i don't think it bogs (or at least as much). I don't wanna jump to conclusions but i would assume it has something to do with back pressure/ my custom exhaust/ something of that relation?

I'll have to do some more testing to make sure its not just the 20 degree temp difference between yesterday and today.

remember what I said ! the air intake to the carb must be around 100deg f...when you rotate the cover in coldweather this is what happens.. on my 83 the air intake pipe from the exhaust manifold was rapped with insulation..this the kept the air to carb warmer, better running in very cold around town driving..

my experience is 50deg f or above you can get away with the cover flip...below 50 with high humidity you will get carb icing and then it will stall and not start until the ice melts..